Sears Roebuck 3hp 217-5854-4 Outboard Transom Clamp Swivel Bracket 1969-1970 40hp Basically this would have been

Basically this would have been found on all alpha One (Gen I & II) & Bravo models Gimbal housing transom assemblies 1983-present which included both the Gen I & Gen II transom assemblies that use this style of hydraulic connector

Item Details & Compatibility This is the type of driveshaft used in very old & earliest models of the MerCruiser lower unit gearcases

but the other one is normal

1994 Various 50hp

This is for 3-blade propellers

Sears Roebuck 3hp 217-5854-4 Outboard Transom Clamp Swivel Bracket 1969-1970 40hp Basically this would have beenItem Details Outboard Transom Clamp Swivel Bracket & Tiller Handle Removed from a 1969 1970ish Sears Roebuck 3hp Outboard Model 217 5854 4 (Serial Number 4D 506877) General Application Compatibility We do not have specific compatibility information on this, but many of the "Sears" outboards were made by a handful of the same manufacturers and shared many common parts, but carried different brand names, I. E. Sears Roebuck Ted Williams Gamefisher